1. Self-cleaving RNAs that functioncatalytically are called
A. snRNPs
B ribosomes.
C. snRNAs.
D. Splicesomes
E. Ribosomes
2. Molecules of tRNA are
A. 75 to90 nucleotides inlength
B. Single-stranded with secondarystructure
C. Cloverleaf in shape
D. Synthesized with modifiedbases.
E. All of the above
3. Which parts of a eukaryotic gene aretranscribed?
A. Exons, introns, promoter, andterminator sequence
B. Only exons
C. Both exons and introns
D. Only the introns
E. It depends on thegene